20023133 has 16 divisors (see below), whose sum is σ = 22692096. Its totient is φ = 17529600.

The previous prime is 20023121. The next prime is 20023139. The reversal of 20023133 is 33132002.

It is a cyclic number.

It is not a de Polignac number, because 20023133 - 2¹⁰ = 20022109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49733 + ... + 50133.

It is an arithmetic number, because the mean of its divisors is an integer number (1418256).

Almost surely, 2^20023133 is an apocalyptic number.

20023133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20023133 is a deficient number, since it is larger than the sum of its proper divisors (2668963).

20023133 is a wasteful number, since it uses less digits than its factorization.

20023133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 20023133 is about 4474.7215555831. The cubic root of 20023133 is about 271.5463757071.

Adding to 20023133 its reverse (33132002), we get a palindrome (53155135).

The spelling of 20023133 in words is "twenty million, twenty-three thousand, one hundred thirty-three".